I knew I wanted to
further my career in some capacity and decided administration was the
preferred area. However, at that point I was in no hurry to leave the
classroom. I wanted to do my studies and courses prior to having a family
though and that's why I started grad school in my second year of teaching.
I did it full time and concluded my studies in two years.

Be sure to investigate
all areas and aspects. For example, the time of the courses, internship
opportunities, professors, cost, reputation, and even trivial things such
as parking! The one college I explored was known for horrendous parking
and it was a deterrent to me.